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Bantamweight boxing · most active 2020s

Seiya Tsutsumi

13–0 · 16 recorded bouts · 2018–2025

Boxing record

13–0–3

Seiya Tsutsumi finished 62% of 13 wins inside the distance — the 69th percentile for bantamweight boxing, where the median is 48%. No reach is on record, so this page compares record rather than measurements.

20102020win v Jiaqi Yu, 2018win v Junpei Inamoto, 2018win v Yutthana Narkprasert, 2018, kowin v Alongkon Kaisi, 2018draw v Daigo Higa, 2020, decisiondraw v Kazuki Nakajima, 2020, drawwin v Kenshin Oshima, 2022, kowin v Kyosuke Sawada, 2022, kowin v Ryan Rey Ponteras, 2022, kowin v Kazuki Anaguchi, 2023, decisionwin v Riku Masuda, 2023, decisionwin v Jin Minamide, 2023, kowin v Takuma Inoue, 2024, decisionwin v Weerawat Noolae, 2024, kowin v Nonito Donaire, 2025draw v Daigo Higa, 2025, decision
WON ABOVE·LOST BELOW BAR = STOPPAGE·BROKEN BAR = SUBMISSION·TICK = DECISION 2018–2025

SOURCE·Seiya Tsutsumi — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-07

How this record is compiled

  1. Measurements come from the fighter's English Wikipedia infobox; the bout list is parsed from the results table on the same article, read on 2026-07-07. Boxing tables are read by header name and MMA records by the fixed column order of the MMA record template — two different parsers, because reading MMA rows as a boxing table returns a fighter's boxing record in place of their real one.
  2. A bout enters the ledger with whatever fields the source states: result, opponent, method, round, year. Any field the source leaves empty stays empty here. A date that cannot be established is left blank rather than inferred, and the bout is still counted.
  3. A no contest is counted and printed as a no contest. It is never folded into the wins, the losses or the draws, and it never disappears to make a total balance.
  4. Where the article's infobox total disagrees with its own results table, both figures are published and each is labelled with where it came from. Nothing is averaged and nothing is reconciled against a second database.
  5. Percentiles rank this fighter among the 190 bantamweight boxing fighters in the dataset — the most specific group of at least 30 that this fighter belongs to.

Sources, exclusions and known limits →

Bout record

Every bout the article's own results table lists, in order. A dash is a field the source leaves empty — it is not a zero and it is not a guess.

Bout-by-bout recordAUG 2026
YearResultOpponentMethodRd
2025 W Nonito Donaire —12
2025 D Daigo Higa Decision12
2024 W Takuma Inoue Decision12
2024 W Weerawat Noolae KO/TKO4
2023 W Kazuki Anaguchi Decision10
2023 W Riku Masuda Decision10
2023 W Jin Minamide KO/TKO9
2022 W Kenshin Oshima KO/TKO9
2022 W Kyosuke Sawada KO/TKO8
2022 W Ryan Rey Ponteras KO/TKO1
2020 D Daigo Higa Decision10
2020 D Kazuki Nakajima Draw8
2018 W Jiaqi Yu —6
2018 W Junpei Inamoto —1
2018 W Yutthana Narkprasert KO/TKO1
2018 W Alongkon Kaisi —1

4 of these opponents have their own page here.

SOURCE·Seiya Tsutsumi — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-07

What is on record

Measurements
Reachnot recorded
Height65″ (165.1 cm)
StanceOrthodox
DivisionBantamweight Boxing
Most active decade2020s — 12 of 16 dated bouts
CountryJapan

Wikipedia carries no reach figure for Seiya Tsutsumi, so the reach-advantage comparison this site is built on cannot be computed. Everything below comes from the record instead.

2020 win vs Jiaqi Yu (2018)win vs Junpei Inamoto (2018)win vs Yutthana Narkprasert (2018)win vs Alongkon Kaisi (2018)draw vs Daigo Higa (2020)draw vs Kazuki Nakajima (2020)win vs Kenshin Oshima (2022)win vs Kyosuke Sawada (2022)win vs Ryan Rey Ponteras (2022)win vs Kazuki Anaguchi (2023)win vs Riku Masuda (2023)win vs Jin Minamide (2023)win vs Takuma Inoue (2024)win vs Weerawat Noolae (2024)win vs Nonito Donaire (2025)draw vs Daigo Higa (2025)
winlossdraw / NC2018–2025

Record

Boxing record

13–0

16 bouts on record

Finish rate

62%

of wins ended inside the distance — bantamweight boxing median 48%, 69th percentile

By knockout: 8 (62%)By decision: 5 (38%)
  • By knockout 62%
  • By decision 38%

The career, bout by bout

16 recorded bouts from 2018 to 2025. Every incumbent shows this as a table you have to read; here it is as a shape you can see.

Career span

8y

2018–2025

Longest unbeaten run

13

without a loss — draws do not break it

Busiest year

2018

4 bouts

Recorded bouts

16

16 with a date

Standing questions

What this record does and does not say

What is Seiya Tsutsumi's record?
13–0–3 in boxing. That is the aggregate stated in the English Wikipedia infobox; the results table on the same article lists 16 bouts individually.
Does a no contest change a record here?
No. A no contest is not a win, a loss or a draw, and it is never folded into one. It is counted and printed separately, so a 20–0 record with two no contests is shown as exactly that rather than as 22–0 or as 20–0 with the no contests dropped. The same applies to a bout overturned after the fact where the source records the change.
What happens when sources disagree about a fight?
This site publishes one source — the fighter's English Wikipedia article, read on the date printed under every table — and it does not silently reconcile that against anyone else's database. Where the article's own infobox total and its own results table disagree, both are shown and the page says which one each figure came from. Nothing is averaged, and no field is filled in from a second source to make a total balance.

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Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.